Finding the Fourth Proportional to 445,824,277.20, 668,736,415.80 and 118,299,157.20
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Solution
The fourth proportional to 445,824,277.20, 668,736,415.80 and 118,299,157.20 is: 177,448,735.80
Step by Step Solution
- Step 1: Write the proportion equation
445,824,277.20 : 668,736,415.80 = 118,299,157.20 : x - Step 2: Convert to fraction form
445,824,277.20/668,736,415.80 = 118,299,157.20/x - Step 3: Cross multiply
445,824,277.20x = 668,736,415.80 × 118,299,157.20 - Step 4: Simplify right side
445,824,277.20x = 79,110,954,378,088,768 - Step 5: Solve for x
x = 79,110,954,378,088,768/445,824,277.20 - Step 6: Final answer
x = 177,448,735.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.